F25B 1/047
Of screw type
Official title: of screw type
F25B1/047 (Of screw type) appears on 207 US grants and 141 published applications in this corpus.
Search patents in F25B- Granted patents
- 207
- Published applications
- 141
- Assignees
- 88
- Inventors
- 388
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 7 | 2 |
| 2003 | 7 | 2 |
| 2004 | 5 | 3 |
| 2005 | 1 | 3 |
| 2006 | 1 | 3 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 3 | 2 |
| 2011 | 1 | 4 |
| 2012 | 2 | 4 |
| 2013 | 2 | 7 |
| 2014 | 4 | 1 |
| 2015 | 4 | 6 |
| 2016 | 0 | 6 |
| 2017 | 5 | 11 |
| 2018 | 1 | 7 |
| 2019 | 10 | 8 |
| 2020 | 11 | 16 |
| 2021 | 10 | 14 |
| 2022 | 9 | 7 |
| 2023 | 11 | 10 |
| 2024 | 16 | 8 |
| 2025 | 9 | 8 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lubricant management in an HVACR system28 Jul 2026US 12,693,052 B2Trane International Inc.
- Lubricant management in an HVACR system28 Jul 2026US 12,693,053 B2Trane International Inc.
- Variable capacity bypass valve for screw compressor11 Nov 2025US 12,467,458 B2Hitachi Global Air Power US, LLC
- Multi-level oil vaporizer for refrigeration system4 Nov 2025US 12,460,846 B2Carrier Corporation
- Rotary heat exchanger30 Sep 2025US 12,429,253 B2Nativus, Inc.
- Rotary heat exchanger27 Aug 2026US 2026/0251358 A1Nativus, Inc.
- System and method for lubricant quality control of an hvacr system23 Apr 2026US 2026/0110473 A1Trane International Inc.
- Motor, compressor, and method of manufacturing a motor15 Jan 2026US 2026/0018952 A1Aichi Electric Co., Ltd.
- Motor, compressor, and method of manufacturing a motor15 Jan 2026US 2026/0018953 A1Aichi Electric Co., Ltd.
- Direct drive refrigerant screw compressor with refrigerant lubricated rotors6 Nov 2025US 2025/0341213 A1Carrier Corporation
Most cited
By later US patents
- Variable speed drive chiller system167US 6,434,960 B1Carrier Corporation · 2002
- Scroll machine with continuous capacity modulation148US 6,412,293 B1Copeland Corporation · 2002
- Temperature control system and method for efficiently obtaining and maintaining the temperature in a conditioned space140US 6,095,427 AThermo King Corporation · 2000
- Solid state compressor control system114US 4,227,862 AFrick Company · 1980
- Methods and apparatus for operating a refrigeration system113US 5,174,123 AThermo King Corporation · 1992